/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.bigtop.datagenerators.samplers.samplers;

import java.util.Random;

import org.apache.bigtop.datagenerators.samplers.SeedFactory;

public class UniformIntSampler implements Sampler<Integer>
{
	int lowerbound;
	int upperbound;
	Random rng;

	/*
	 * Upperbound is inclusive
	 */
	public UniformIntSampler(int lowerbound, int upperbound, SeedFactory seedFactory)
	{
		this.lowerbound = lowerbound;
		this.upperbound = upperbound;
		rng = new Random(seedFactory.getNextSeed());
	}

	public Integer sample()
	{
		int range = upperbound + 1 - lowerbound;
		return rng.nextInt(range) + lowerbound;
	}
}
